This is a Metatron's Cube sphere holder crystal grid made out of Birch wood. This is just for the grid, stones much be purchased separately. You can use spheres as small as 1" up to 5" depending on the size grid you choose.
If there is another grid we sell that you want made into a sphere holder just message us and we can create a custom order for you. We can also do different sizes grids and different configurations of the holes. Keep in mind there may be an extra cost involved for customization.